We have been told that water is essential for our life and well-being over and over again. However, sometimes, drinking too much water can cause overhydration which will lead to water intoxication. What is Water Intoxication? Drinking too much water in a short time can lead to water intoxication. It is a severe form of hyponatremia, which occurs when water dilutes the sodium levels below 135 mmol/L in our bloodstream and causes an electrolyte imbalance. When sodium levels drop due to excess water consumption, fluids shift from the outside to the inside of cells, causing them to swell. When this happens to brain cells, it can produce dangerous and potentially life-threatening effects. Water intoxication most likely occurs when someone drinks more than 50 ounces of water within an hour...